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Issue 74, 2017, Issue in Progress
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Synthesis and characterization of cobalt hydroxide carbonate nanostructures

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Abstract

Battery-type electrodes of three-dimensional (3D) hierarchical cobalt hydroxide carbonate arrays on Ni foam were fabricated using a hydrothermal method for use in supercapacitors. X-ray diffraction analysis, scanning electron microscopy, and transmission electron microscopy were used to characterize their structures and morphologies. The cobalt hydroxide carbonate synthesized with 10 h reaction time showed the highest specific capacitance (1381 F g−1 at a current density of 2 A g−1) and excellent cycling stability (92% capacitance retention after 5000 cycles). Moreover, its capacitance increased by 33% at 2 A g−1 and by 10% at 20 A g−1 after 5000 charge–discharge cycles. This cobalt hydroxide carbonate composite is a promising candidate for electrochemical energy-related applications.

Graphical abstract: Synthesis and characterization of cobalt hydroxide carbonate nanostructures

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Publication details

The article was received on 16 Aug 2017, accepted on 20 Sep 2017 and first published on 04 Oct 2017


Article type: Paper
DOI: 10.1039/C7RA09050A
RSC Adv., 2017,7, 46925-46931
  • Open access: Creative Commons BY-NC license
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    Synthesis and characterization of cobalt hydroxide carbonate nanostructures

    X. Lin, H. Li, F. Musharavati, E. Zalnezhad, S. Bae, B. Cho and O. K. S. Hui, RSC Adv., 2017, 7, 46925
    DOI: 10.1039/C7RA09050A

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